﻿using System;
using System.Collections.Generic;
using System.Text;

namespace ConsoleApp2
{
    public class App
    {
        
        public bool Judge(ref int a)
        {
            if (a % 3 == 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }

        public void Ace(out int a,int b,int c)
        {
            a = b + c;
        }

    }
}
